Locking device for firearms.



R. FROMMER. I LOCKING DEVICE FOR FIREARMS.

APPLICATION FILED 11017.5, 1907.

949,467. Patented Feb. 15, 1910.

wa i'nasges'z jive m r X Wufiz w mfg/ (7 UNITED STATES PATENT QFFTQE.

RUDOLF FROMMER, OF BUDAPEST, AUSTRIA-HUNGARY.

LOOKING DEVICE FOR FIREARMS.

T 0 all whom it may concern:

Be it known that I, RUDOLF FROMMER, manager, subject of the King ofHungary, residing at Budapest, in the Empire of Austria -Hungary, haveinvented certain new and useful Improvements in Looking Devices forFirearms, of which the following is a specification.

The present invention relates to locking devices for fire arms, theobject being to provide a device, which, when operated simultaneouslylocks or unlocks different parts of the fire arm and which can only beactuated by means of a pressure or force, acting in two differentdirections.

One form of construction of the locking mechanism is shown in theaccompanying drawing as applied to an automatic loading pistol.

Figure 1 illustrates the locking device arranged in a pistol, the devicebeing shown in side elevation, while Figs. 2 and 3 are sections on thelines AB and CD respectively of Fig. 1.

The locking mechanism consists of a slide 1 which slides in a T-shapedgroove 2 of. the pistol. A push button 3 is provided in the borearranged perpendicularly to the direction of movement of the slide,which button is provided with a longitudinal slot 4: in which a pin 5 isarranged. Two grooves 6 are machined into the lower surface of the slide1 in which grooves the projection 9 of a bolt 8 engages under the actionof a spring 7. The slide 1 is fixed in its positions determined by theslots 6 by means of the spring bolt 8. The button 3 is provided at. itslower portion with an edge 10, which crosses the projection 9 of thespring bolt 8. In order that the locking mechanism may be actuated orthe slide 1 may be moved in the groove 2, the button 3 has in the firstplace to be depressed so as to force the projection 9 out of one of thegrooves 6 by means of the edge 10, and then only is the slide releasedso that the same may be moved. In order therefore to actuate the lockingmechanism a pressure against the spring 7 and at the same time apressure exercised in the direction of the groove 2 are necessary.

Specification of Letters Patent.

Application filed. November 5, 1907.

Patented Feb. 15, 1910.

Serial No. 400,819.

The locking device is constructed in such a manner that it locks thepistol locking device 15, the sear, the hammer and the hammer springrespectively by the projections 11, 12, 13 and 14. The length of theprojection 14: is such that it maintains the spring of the hammer alsoin the unlocked position (Figs. 1 and 2) so that the hammer spring canonly be taken out if the locking device has been moved beyond itsunlocking position.

I claim 1. Locking mechanism for the locking slide of fire-armscomprising a locking bolt adapted to engage with grooves of the saidslide, a spring co-acting with said locking bolt, and a push-buttonarranged in said slide and adapted, when depressed, to force the saidlocking bolt out of one of the said grooves, thereby releasing the saidslide.

2. Locking mechanism for the locking slide of fire-arms comprising alocking bolt, having a projection (9) to engage with grooves provided insaid slide, a spring coacting with said locking bolt and a push buttonarranged in said slide and adapted when depressed, to force theprojection of the said locking bolt out of one of said grooves, therebyreleasing the said slide.

3. Locking mechanism for the locking slide of fire-arms comprising incombination with the hammer and said locking slide a locking bolt,provided with means to engage with grooves in said slide, a springcoacting with said locking bolt, a push-button arranged in said slideand adapted, when depressed, to force the said locking bolt out of oneof said grooves, thereby releasing the said slide, and a projection onsaid slide adapted to secure the spring of the said hammer in both itslocked and unlocked position.

In testimony whereof I affix my signature in presence of tWo witnesses.

RUDOLF FROMMER.

Vitnesses PHILIP SoHoN, LESLIE ILSASZ.

